Sentences with phrase «emitted by matter»

Of current instruments, only ALMA has the characteristics required to reveal these mysteries, by observing, in depth, star - forming clouds and detecting the soft light emitted by matter which is just beginning to warm up, and even mapping its movement.

It was not until the detection of quasars, which allow astronomers to see the light emitted by matter falling into black holes, that we had evidence that they were real objects and not just mathematical curiosities predicted by Einstein's general theory of relativity.

Not exact matches

The sun frequently emits bursts of matter and energy called flares, which are triggered by a star's natural magnetic turbulence.

The instruments that search for these products of dark matter annihilation were conceived as telescopes or detectors to look at particles and photons emitted by galaxies and the exotic objects that lie within them.

The study, led by researchers in Switzerland and Norway with help from Hayes and colleagues in Italy, France and the U.S., looked at carbonaceous particulate matter (PM) emitted from the tailpipes of cars.

In fact it's positively chilly, with more than half the energy emitted by normal matter coming from clouds of gas and dust too cold to radiate visible light — and which therefore can not be seen with traditional telescopes.

Focusing on the year 2007, the researchers found that of the 3.45 million premature deaths caused by fine - particulate - matter air pollution, about 12 percent were related to pollutants emitted in a different region of the world, and 22 percent were associated with goods produced in one region for consumption in another.

They moreover show that the light signature emitted by Phobos and Deimos is incompatible with that of the primordial matter that formed Mars (meteorites such as ordinary chondrite, enstatite chondrite and / or angrite).

It was a matter of pinning down their direction, which requires measuring the Doppler shift in the spectrum of the light emitted by the stars.

These are emitted by the quadrillion from the fusion factory at the core of the sun and usually pass through matter like a laser beam through fog.

This is a subtle variant of weak gravitational lensing, in which the light emitted from distant galaxies is slightly warped by the gravitational effect of large amounts of matter, such as galaxy clusters.

If a star seems to disappear, the team will try to confirm the formation of a black hole by looking for X-rays emitted by stray bits of matter falling into the black hole, Kochanek says.

By comparing differences in the X-ray spectra between Type I and Type II galaxies, the researchers concluded that, regardless of which way the galaxy faces Earth, the central black holes in Type I galaxies consume matter and emit energy much faster compared with the black holes at the center of Type II galaxies.

The light emitted by old stars and clumps of hot pristine gas from the early universe suggest helium made up some 25 per cent of the ordinary matter created during the big bang.

The existence of black holes can be proven because matter is greatly accelerated by the gravitational force and thus emits particularly high - energy radiation.»

In this case, the researchers looked for distortions to light being emitted by background galaxies caused by foreground dark matter filaments.

Six years after the discovery of radioactivity (1896) by Henri Becquerel of France, the New Zealand - born British physicist Ernest Rutherford found that three different kinds of radiation are emitted in the decay of radioactive substances; these he called alpha, beta, and gamma rays in sequence of their ability to penetrate matter.

The paper outlines how interactions between particles emitted by a black hole can reveal information about what lies within, such as characteristics of the object that formed the black hole to begin with, and characteristics of the matter and energy drawn inside.

Is there a dark - matter particle, as some theorize, that could be detected by the gamma rays emitted when it meets its anti-particle and self - annihilates?

SESAME, which stands for Synchrotron - light for Experimental Science and Applications in the Middle East, is a light - source; a particle accelerator - based facility that uses electromagnetic radiation emitted by circulating electron beams to study a range of properties of matter.

In this work, which is wall mounted like an gargantuan floral wreath, tiny little objects such as angel figurines and silk flowers are camouflaged and completely overpowered by molten matter made up of large masses of foam and glass paint with beads, while actual bubbles are emitted into the viewer's space with the assistance of an aerator.

I.absorbed / I.incident = absorptivity; I.absorbed = I.emitted; I.incident = B.emitted (because they have the same brightness temperature, where B.emitted is what would be emitted by a blackbody, and is what would be in equilibrium with matter at that temperature), emissivity = I.emitted / B.emitted; therefore, given that absorptivity is independent of incident intensity but is fixed for that material at that temperature at LTE, and the emitted intensity is also independent of incident intensity but is fixed for that material at that temperature, emissivity (into a direction) = absorptivity (from a direction).

But this is silly, since the atmospheric lifetime of aerosols is just a matter of days, so once we stop burning coal, as we eventually must, the aerosols disappear quickly, unmasking the pent - up warming due to all the extra CO2 we emitted by not switching from coal to natural gas.

With all that renewable energy comes over 100,000 jobs, and a huge reduction in carbon dioxide (27 million pounds of CO2 that is not emitted by power plants) and a reduction in smog producing nitrogen oxides and the health threatening fine particulate matter.

«When open burning emissions, which emit high levels of organic matter, are included in the total, the best estimate of net industrial - era climate forcing by all short - lived species from black - carbon - rich sources becomes slightly negative -LRB--0.06 W / m2 with 90 % uncertainty bounds of -1.45 to +1.29 W / m2).

At the temperature the atmosphere is, it radiates infrared so this radiation interacts with the atmospheric matter exactly in the same way as the radiation emitted by the ground does.

It delves into the impacts of aerosols, which are tiny pollutants of mineral dust, soot and organic matter emitted by sources such as power plants, factories and quarries.

As a matter of fact the radiation flow from the surface absorbed by the air is within a few percent equal to the radiation of the air impinging on the surface: that is very different of the greenhouse glass panel in the vacuum that absorbs all of the thermal infrared radiation from the surface and emits half of it upwards and half of it downwards back to the surface.

Global climate change is influenced by the average concentration of greenhouse gasses in the atmosphere and it does not matter where the carbon dioxide was emitted.

It leads to whether we should accept the SB for * normal * temperature matter at a constant and whether it should be reformulated to a coefficient, divided by as much as 12, to produce 30w / m2 for outgoing longwave from earth on average, since it's clear that earth isn't attempting to reach absolute zero in order to reach equilibrium, and emit as much as it possible can to achieve it.

SCALIA, J. (Dissenting, page 08): «Air pollutant» is defined by the Act as «any air pollution agent or combination of such agents, including any physical, chemical,... substance or matter which is emitted into or otherwise enters the ambient air.»

temperature is a function of energy but certainly not = energy Temperature is a measure of the average internal kinetic energy of matter and also a [non-linear] measure of the radiant energy emitted by a body.

Since the temperature of an emitting object is determined by p = εσT ^ 4 it is only a matter of algebra to figure out what emissivity Nasif used to calculate the above temperature.

But he also discovered by selecting individual wavelengths, that no matter how bright the illumination might get; some times there was no photo - electron emitted at all.

In the case of gases the emissivity limits the radiation to some wavelengths while solid and matter emits IR at all wavelengths within limits set by the temperature.